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English Español Tiếng Việt بالعربية Français Русский язык Português Deutsch 日本語 Italiano 한국어 Nederlands Türkçe Svenska Polski Ελληνικά Dansk Suomi Čeština Slovenská
Customization
Get a Custom Battery System Designed Just for You
From design to production, we provide a one-stop battery solution.
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Custom Battery Solutions

If you can't find the ideal battery pack or charger in our product list, explore our customized solutions here.

Our customization services focus on delivering highly tailored battery packs and charging solutions to meet the specific needs of various industries.

Backed by an experienced engineering team, advanced R&D lab, and highly automated production facilities, we provide a one-stop custom battery solution from design to production.
Product List
Your Challenges, Our Solutions
Key Barriers RHY Solutions Your Benefits
Clueless
“I want to customize a battery pack for my new product, but I don’t know nothing about batteries.”
RHY has a standardized process for custom battery packs, supported by an experienced engineering team and advanced R&D lab, providing you with proven battery advice and engineering support from design to production.
Relieve you from ignorance about batteries, ensuring that your products not only meet expectations but exceed them. You will know exactly the next steps, our actions, and deliverables at each stage, avoiding repetitive work and endless delays.
Complicated
“When I get a design drawing here, do I still need another factory for molding?”
With a professional team and state-of-the-art equipment, we provide a one-stop solution covering all design, development, molding, production, testing, and shipping.
Start from scratch and have everything ready in one place, including batteries, chargers, and connectors — easy and fast.
Performance
“I need stronger power and longer runtime from the battery.”
The cells used in our battery packs represent the world's most cutting-edge battery technology, boasting the highest levels of energy density.
Make your products work at their peak performance and last longer on a single charge, giving your users more confidence to complete the job.
Safety
“Lithium-ion batteries are dangerous, and I need them to be fully protected.”
Built-in BMS with adequate protection circuit module, protecting Li-ion batteries from overcharge, overdischarge, short circuit, and more.
Protecting your users' safety and property from harm and loss.
Compatibility
“Will the new battery have the same compatibility as my old one?”
By conducting multiple compatibility tests, we ensure that the new batteries can be perfectly compatible and interchangeable with both the old tools and the new ones, as well as with the new chargers and the old ones.
Ensure the consistency and continuity of your product line.
High Costs
“It must be extremely expensive to have such a perfect battery solution.”
Factory direct sales, with everything priced and sold based on their actual costs.
Ensuring your investment always gets the best value.
What We Customize
Enclosure
Cells
BMS
Charger
Connector
Enclosure
Unless the battery is fully embedded within your finished product—where shrink tubing would be a better fit—it will require a durable plastic casing. A battery enclosure is more than just protective shell; it’s a fusion of design and functionality.
From concept and molding to final production, we create custom enclosures tailored to your product’s needs. Our designs can meet your specific requirements of structural integrity, precise dimensions, impact resistance, heat dissipation, explosion protection, and IP ratings. Generally, the battery pack can form part of the outer case of the finished product and usually requires a mechanical latch to hold the battery in place.
Our design philosophy prioritizes both aesthetics and ergonomics, making each battery pack not only robust but visually appealing. Inside, every detail is meticulously engineered to securely house cells, PCB/PCBA, connectors, and other critical components—ensuring seamless integration and reliable performance.
Cells
The heart of any battery system is its cells. Our approach to cell selection is meticulous and customer-centric, ensuring that we are providing the best performance, cost-effectiveness, and reliability.
We carefully choose the ideal cell chemistry, brand, model, and specifications to match your budget and operational needs. Whether you require specific voltage, charge/discharge current, low internal resistance, or have particular working conditions in mind, we have the expertise to match you with the perfect solution.
We partner with top-tier battery cell manufacturers like Samsung, LG, Sony, EVE, Sunpower, Highstar, and more. Our preferred choices—18650 and 21700 lithium-ion cells—are widely recognized for their efficiency, high energy density, and long lifespan, delivering batteries that power your products reliably for years to come.
BMS
The Battery Management System (BMS) is the brain of a battery pack. Our solutions enable intelligent communication with the host device via I2C, SMBus, CAN, UART, or custom protocols. This allows real-time exchange of critical data such as state-of-charge (SoC), voltage, current, temperature, cycle count, fault diagnostics (including over-temperature, over-discharge, short circuit, etc.), and authentication.
Our advanced BMS features an integrated Protection Circuit Module (PCM) that monitors each cell to prevent against overcharge, over-discharge, overheating, overcurrent, and other risks. By integrating a smart BMS, we ensure that the battery, charger, and your device work as a system. All of this ensures safe operation, optimal performance, and extended lifespan.
Charger
The pursuit of rapid charging must be balanced with battery safety. Our innovative approach to charging technology addresses this balance, ensuring that your devices are powered up quickly without compromising the safety.
Our air-cooling charging technology actively regulates temperature during the charging process. The cooling fan in our chargers circulates air through the charger and battery, preventing both the battery and charger from overheating during rapid charging. This proactive cooling mechanism protects your battery from potential damage while enhancing overall charging efficiency.
You can enjoy the benefits of fast charging without risks. Our chargers are designed to maintain optimal operating conditions, which in turn improves charging efficiency and extends the lifespan of the battery, ensuring long-term reliability.
Connector
Battery connectivity is of great concern to us, as it largely determines the steady and uninterrupted flow of battery power. We engineer the best connection solution according to your specific applications, providing connector assemblies including terminal bases, metal contacts and wiring harnesses from your device to our batteries, which transmit power and carry digital communication.
From initial design to final manufacturing, we ensure consistent quality and reliability in every connection. In addition, we offer specialized connectors to withstand extreme environments—whether it's water and dust exposure, high humidity, salt corrosion, or extreme temperatures, our connectors are engineered to perform flawlessly.
 
 
Why Work with Us
Customization Process
Research & Analysis
 
Concept Design
 
BMS Development
 
Prototyping
 
Molding & Tooling
 
Manufacturing
 
Research & Analysis

Our team of engineers at RHY delves deep into analyzing your product system, understanding your requirements, and determining the optimal battery strategy. This includes voltage, capacity, power, size, connection methods, charging solutions.

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Concept Design

Based on your required specifications and the insights of our talented industrial designers, we utilize cutting-edge design tools and technologies to create innovative concept designs that align with your vision and required specifications.

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BMS Development

Customized Battery Management System (BMS) development and integration tailored to meet the your specific requirements & specifications and incorporate the necessary protection features.

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Prototyping

Production of working prototypes in accordance with the finalized drawings and specifications to ensure design and functionality alignment.

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Molding & Tooling

Precision development and manufacturing of molds for custom plastic and metal components with tolerances within 0.2mm and a lifespan of up to 500K production cycles, essential for mass production.

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Manufacturing

Seamless manufacturing services will be provided based on your orders, ensuring timely delivery and high-quality production standards.

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Recent Projects
Innovative Tensioner Battery

A U.S. company launched a new electric transport tensioner device requiring a battery solution that stays stable in vibration and harsh, salty, humid environments. RHY designed a stable connector structure and used corrosion-resistant materials, meeting the customer's needs perfectly.

Meeting Stringent Battery Quality Demands

A Swiss tool manufacturer sought batteries to match the quality of top brands like Bosch. We delivered a high-quality battery using premium materials and precision manufacturing, exceeding their expectations and earning their full satisfaction.

Upgrading Outdated Power Tool Battery

A Japanese brand needed an upgrade for their outdated battery design, adding protection features without affecting compatibility. RHY re-engineered the battery, added multiple protection functions, and conducted extensive testing to ensure full compatibility with both old and new tools and chargers.

 
 
When it comes to finding reliable battery solutions, look no further.

Contact us today to discuss your battery needs.

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